fixed SymConst handling

[r8262]

[r8230]

[r8195]

[r8162]

[r8158]

Adapted out edges to the new dependency edges

[r8135]

is_Alloc() added

[r8109]

[r8106]

[r8098]

[r8083]

[r8074]

with the FPU environment access. Need new opcodes for that ...

[r8017]

The pinned attibute can be changed for nodes that are exception/memory pinned
or floating point nodes.

[r8014]

that should remain due to strict fp rounding rules.
Removed unused Start attibutes.
Renamed attribute names to more understandable names.

[r7982]

[r7940]

[r7913]

[r7863]

added symconst_type_align

[r7814]

some is_*() functions added

[r7802]

[r7719]

[r7715]

[r7702]

[r7682]

[r7659]

do not use set_irn_in to change End's keep-alives, this changes the in array from a flexible one to a dynamic ...
use new set_end_keepalives() function

[r7658]

[r7596]

[r7572]

[r7544]

[r7522]

[r7510]

[r7509]

[r7494]

[r7477]

[r7389]

[r7363]

[r7322]

[r7303]

fixed get_irn_type(), must return unknown_type instead of NULL

[r7283]

[r7244]

 high level bounds check for Java, Pascal, Modula-3

[r7214]